[Numpy-discussion] new mingw-w64 based numpy and scipy wheel (still experimental)

[Sturla Molden]

On 27/01/15 11:32, Carl Kleffner wrote:

> OpenBLAS in the test wheels is build with DYNAMIC_ARCH, that is all
> assembler based kernels are included and are choosen at runtime.

Ok, I wasn't aware of that option. Last time I built OpenBLAS I think I 
had to specify the target CPU.

 > Non
> optimized parts of Lapack have been build with -march=sse2.

Since LAPACK delegates almost all of its heavy lifting to BLAS, there is 
probably not a lot to gain from SSE3, SSE4 or AVX here.


Sturla